Cap nut



FIG. 1 is a top plan view of a cap nut bearing my new design;

FIG. 2 is an elevational view of FIG. 1;

FIG. 3 is a sectional view taken in the direction of the central vertical plane;

FIG. 4 is a top plan view of a second embodiment of the design of FIG. 1;

FIG. 5 is an elevational view of FIG. 4;

FIG. 6 is a sectional view taken in the direction of the central vertical plane. 

The ornamental design for a cap nut, as shown and described. 